new file mode 100644

@@ -0,0 +1,42 @@

+# ARM support

+

+The ARM support should be considered experimental. It will be extended step by step in the coming weeks.

+

+Building a Docker Development Image works in the same fashion as for Intel platform (x86-64).

+Currently we have initial support for 32bit ARMv7 devices.

+

+To work with the Docker Development Image you have to clone the Docker/Docker repo on a supported device.

+It needs to have a Docker Engine installed to build the Docker Development Image.

+

+From the root of the Docker/Docker repo one can use make to execute the following make targets:

+- make validate

+- make binary

+- make build

+- make bundles

+- make default

+- make shell

+- make

+

+The Makefile does include logic to determine on which OS and architecture the Docker Development Image is built.

+Based on OS and architecture it chooses the correct Dockerfile.

+For the ARM 32bit architecture it uses `Dockerfile.arm`.

+

+So for example in order to build a Docker binary one has to  

+1. clone the Docker/Docker repository on an ARM device `git clone git@github.com:docker/docker.git`  

+2. change into the checked out repository with `cd docker`  

+3. execute `make binary` to create a Docker Engine binary for ARM  

+

+# Supported devices

+

+## Scaleway Server C1

+A Scaleway C1 server can be easily purchased on demand on the Scaleway website:

+

+https://www.scaleway.com

+

+It is a cheap and fast way to get access to a pysical ARM server.

+It features a 4-cores ARMv7 CPU with 2GB of RAM and a 1 Gbit/s network card.

+

+Scaleway servers can be started we prepared images from their image hub.

+The best image to build a Docker Development Image is:

+

+https://www.scaleway.com/imagehub/docker/

new file mode 100644

@@ -0,0 +1,188 @@

+# This file describes the standard way to build Docker on ARM, using docker

+#

+# Usage:

+#

+# # Assemble the full dev environment. This is slow the first time.

+# docker build -t docker -f Dockerfile.arm .

+#

+# # Mount your source in an interactive container for quick testing:

+# docker run -v `pwd`:/go/src/github.com/docker/docker --privileged -i -t docker bash

+#

+# # Run the test suite:

+# docker run --privileged docker hack/make.sh test

+#

+# # Publish a release:

+# docker run --privileged \

+#  -e AWS_S3_BUCKET=baz \

+#  -e AWS_ACCESS_KEY=foo \

+#  -e AWS_SECRET_KEY=bar \

+#  -e GPG_PASSPHRASE=gloubiboulga \

+#  docker hack/release.sh

+#

+# Note: AppArmor used to mess with privileged mode, but this is no longer

+# the case. Therefore, you don't have to disable it anymore.

+#

+

+FROM ioft/armhf-ubuntu:14.04

+MAINTAINER Govinda Fichtner <govinda.fichtner@googlemail.com> (@_beagile_)

+

+# Packaged dependencies

+RUN apt-get update && apt-get install -y \

+	apparmor \

+	aufs-tools \

+	automake \

+	bash-completion \

+	btrfs-tools \

+	build-essential \

+	createrepo \

+	curl \

+	dpkg-sig \

+	git \

+	iptables \

+	libapparmor-dev \

+	libcap-dev \

+	libsqlite3-dev \

+	libsystemd-journal-dev \

+	mercurial \

+	parallel \

+	pkg-config \

+	python-mock \

+	python-pip \

+	python-websocket \

+	s3cmd=1.1.0* \

+	--no-install-recommends

+

+# Get lvm2 source for compiling statically

+RUN git clone -b v2_02_103 https://git.fedorahosted.org/git/lvm2.git /usr/local/lvm2

+# see https://git.fedorahosted.org/cgit/lvm2.git/refs/tags for release tags

+

+# Compile and install lvm2

+RUN cd /usr/local/lvm2 \

+	&& ./configure --enable-static_link \

+	&& make device-mapper \

+	&& make install_device-mapper

+# see https://git.fedorahosted.org/cgit/lvm2.git/tree/INSTALL

+

+# Install Go

+ENV GO_VERSION 1.4.3

+RUN curl -sSL https://golang.org/dl/go${GO_VERSION}.src.tar.gz | tar -v -C /usr/local -xz \

+	&& mkdir -p /go/bin

+ENV PATH /go/bin:/usr/local/go/bin:$PATH

+ENV GOPATH /go:/go/src/github.com/docker/docker/vendor

+# (set an explicit GOARM of 5 for maximum compatibility)

+ENV GOARM 5

+RUN cd /usr/local/go/src && ./make.bash --no-clean 2>&1

+

+# Compile Go for cross compilation

+ENV DOCKER_CROSSPLATFORMS " "

+

+# This has been commented out and kept as reference because we don't support compiling with older Go anymore.

+# ENV GOFMT_VERSION 1.3.3

+# RUN curl -sSL https://storage.googleapis.com/golang/go${GOFMT_VERSION}.$(go env GOOS)-$(go env GOARCH).tar.gz | tar -C /go/bin -xz --strip-components=2 go/bin/gofmt

+

+# Update this sha when we upgrade to go 1.5.0

+ENV GO_TOOLS_COMMIT 069d2f3bcb68257b627205f0486d6cc69a231ff9

+# Grab Go's cover tool for dead-simple code coverage testing

+# Grab Go's vet tool for examining go code to find suspicious constructs

+# and help prevent errors that the compiler might not catch

+RUN git clone https://github.com/golang/tools.git /go/src/golang.org/x/tools \

+	&& (cd /go/src/golang.org/x/tools && git checkout -q $GO_TOOLS_COMMIT) \

+	&& go install -v golang.org/x/tools/cmd/cover \

+	&& go install -v golang.org/x/tools/cmd/vet

+# Grab Go's lint tool

+ENV GO_LINT_COMMIT f42f5c1c440621302702cb0741e9d2ca547ae80f

+RUN git clone https://github.com/golang/lint.git /go/src/github.com/golang/lint \

+	&& (cd /go/src/github.com/golang/lint && git checkout -q $GO_LINT_COMMIT) \

+	&& go install -v github.com/golang/lint/golint

+

+# Install registry

+ENV REGISTRY_COMMIT ec87e9b6971d831f0eff752ddb54fb64693e51cd

+RUN set -x \

+	&& export GOPATH="$(mktemp -d)" \

+	&& git clone https://github.com/docker/distribution.git "$GOPATH/src/github.com/docker/distribution" \

+	&& (cd "$GOPATH/src/github.com/docker/distribution" && git checkout -q "$REGISTRY_COMMIT") \

+	&& GOPATH="$GOPATH/src/github.com/docker/distribution/Godeps/_workspace:$GOPATH" \

+		go build -o /usr/local/bin/registry-v2 github.com/docker/distribution/cmd/registry \

+	&& rm -rf "$GOPATH"

+

+# Install notary server

+# commented Notary temporary as we are waiting for an update of jose2go: https://github.com/docker/notary/issues/239

+#

+# ENV NOTARY_COMMIT 8e8122eb5528f621afcd4e2854c47302f17392f7

+# RUN set -x \

+# 	&& export GOPATH="$(mktemp -d)" \

+# 	&& git clone https://github.com/docker/notary.git "$GOPATH/src/github.com/docker/notary" \

+# 	&& (cd "$GOPATH/src/github.com/docker/notary" && git checkout -q "$NOTARY_COMMIT") \

+# 	&& GOPATH="$GOPATH/src/github.com/docker/notary/Godeps/_workspace:$GOPATH" \

+# 		go build -o /usr/local/bin/notary-server github.com/docker/notary/cmd/notary-server \

+# 	&& rm -rf "$GOPATH"

+

+# Get the "docker-py" source so we can run their integration tests

+ENV DOCKER_PY_COMMIT 139850f3f3b17357bab5ba3edfb745fb14043764

+RUN git clone https://github.com/docker/docker-py.git /docker-py \

+	&& cd /docker-py \

+	&& git checkout -q $DOCKER_PY_COMMIT

+

+# Setup s3cmd config

+RUN { \

+		echo '[default]'; \

+		echo 'access_key=$AWS_ACCESS_KEY'; \

+		echo 'secret_key=$AWS_SECRET_KEY'; \

+	} > ~/.s3cfg

+

+# Set user.email so crosbymichael's in-container merge commits go smoothly

+RUN git config --global user.email 'docker-dummy@example.com'

+

+# Add an unprivileged user to be used for tests which need it

+RUN groupadd -r docker

+RUN useradd --create-home --gid docker unprivilegeduser

+

+VOLUME /var/lib/docker

+WORKDIR /go/src/github.com/docker/docker

+ENV DOCKER_BUILDTAGS apparmor selinux

+

+# Let us use a .bashrc file

+RUN ln -sfv $PWD/.bashrc ~/.bashrc

+

+# Register Docker's bash completion.

+RUN ln -sv $PWD/contrib/completion/bash/docker /etc/bash_completion.d/docker

+

+# Get useful and necessary Hub images so we can "docker load" locally instead of pulling

+COPY contrib/download-frozen-image.sh /go/src/github.com/docker/docker/contrib/

+RUN ./contrib/download-frozen-image.sh /docker-frozen-images \

+  hypriot/armhf-busybox@ea0800bb83571c585c5652b53668e76b29c7c0eef719892f9d0a48607984f9e1 \

+  hypriot/armhf-hello-world@508c59a4f8b23c77bbcf43296c3f580873dc7eecb1f0d680cea3067e221fd4c2 \

+  hypriot/armhf-unshare@3f1db65f8bbabc743fd739cf7145a56c35b2a0979ae3174e9d79b7fa4b00fca1

+# see also "hack/make/.ensure-frozen-images" (which needs to be updated any time this list is)

+

+# Download man page generator

+RUN set -x \

+	&& export GOPATH="$(mktemp -d)" \

+	&& git clone -b v1.0.3 https://github.com/cpuguy83/go-md2man.git "$GOPATH/src/github.com/cpuguy83/go-md2man" \

+	&& git clone -b v1.2 https://github.com/russross/blackfriday.git "$GOPATH/src/github.com/russross/blackfriday" \

+	&& go get -v -d github.com/cpuguy83/go-md2man \

+	&& go build -v -o /usr/local/bin/go-md2man github.com/cpuguy83/go-md2man \

+	&& rm -rf "$GOPATH"

+

+# Download toml validator

+ENV TOMLV_COMMIT 9baf8a8a9f2ed20a8e54160840c492f937eeaf9a

+RUN set -x \

+	&& export GOPATH="$(mktemp -d)" \

+	&& git clone https://github.com/BurntSushi/toml.git "$GOPATH/src/github.com/BurntSushi/toml" \

+	&& (cd "$GOPATH/src/github.com/BurntSushi/toml" && git checkout -q "$TOMLV_COMMIT") \

+	&& go build -v -o /usr/local/bin/tomlv github.com/BurntSushi/toml/cmd/tomlv \

+	&& rm -rf "$GOPATH"

+

+# Build/install the tool for embedding resources in Windows binaries

+ENV RSRC_COMMIT e48dbf1b7fc464a9e85fcec450dddf80816b76e0

+RUN set -x \

+    && git clone https://github.com/akavel/rsrc.git /go/src/github.com/akavel/rsrc \

+    && cd /go/src/github.com/akavel/rsrc \

+    && git checkout -q $RSRC_COMMIT \

+    && go install -v

+

+# Wrap all commands in the "docker-in-docker" script to allow nested containers

+ENTRYPOINT ["hack/dind"]

+

+# Upload docker source

+COPY . /go/src/github.com/docker/docker

@@ -1,5 +1,20 @@

 .PHONY: all binary build cross default docs docs-build docs-shell shell test test-unit test-integration-cli test-docker-py validate

+# get OS/Arch of docker engine

+DOCKER_ENGINE_OSARCH = $(shell docker version | grep 'OS/Arch' | tail -1 | cut -d':' -f2 | tr -d '[[:space:]]')

+DOCKER_ENGINE_GOOS = $(word 1, $(subst /, ,$(DOCKER_ENGINE_OSARCH)))

+DOCKER_ENGINE_GOARCH = $(word 2, $(subst /, ,$(DOCKER_ENGINE_OSARCH)))

+export DOCKER_ENGINE_OSARCH

+export DOCKER_ENGINE_GOOS

+export DOCKER_ENGINE_GOARCH

+# default for linux/amd64 and others

+DOCKER_FILE = Dockerfile

+# switch to different Dockerfile for linux/arm

+ifeq ($(DOCKER_ENGINE_OSARCH),linux/arm)

+  DOCKER_FILE = Dockerfile.arm

+endif

+export DOCKER_FILE

+

 # env vars passed through directly to Docker's build scripts

 # to allow things like `make DOCKER_CLIENTONLY=1 binary` easily

 # `docs/sources/contributing/devenvironment.md ` and `project/PACKAGERS.md` have some limited documentation of some of these

@@ -13,6 +28,10 @@ DOCKER_ENVS := \

 	-e DOCKER_GRAPHDRIVER \

 	-e DOCKER_STORAGE_OPTS \

 	-e DOCKER_USERLANDPROXY \

+	-e DOCKER_ENGINE_OSARCH \

+	-e DOCKER_ENGINE_GOOS \

+	-e DOCKER_ENGINE_GOARCH \

+	-e DOCKER_FILE \

 	-e TESTDIRS \

 	-e TESTFLAGS \

 	-e TIMEOUT

@@ -77,7 +96,7 @@ shell: build

 	$(DOCKER_RUN_DOCKER) bash

 build: bundles

-	docker build -t "$(DOCKER_IMAGE)" .

+	docker build -t "$(DOCKER_IMAGE)" -f $(DOCKER_FILE) .

 bundles:

 	mkdir bundles

@@ -62,7 +62,7 @@ _dockerfile_env() {

 			print;

 			exit;

 		}

-	' Dockerfile

+	' ${DOCKER_FILE:="Dockerfile"}

 }

 clean() {

@@ -71,7 +71,7 @@ clean() {

 		"${PROJECT}/dockerinit" # package main

 		"${PROJECT}/integration-cli" # external tests

 	)

-	local dockerPlatforms=( linux/amd64 $(_dockerfile_env DOCKER_CROSSPLATFORMS) )

+	local dockerPlatforms=( ${DOCKER_ENGINE_OSARCH:="linux/amd64"} $(_dockerfile_env DOCKER_CROSSPLATFORMS) )

 	local dockerBuildTags="$(_dockerfile_env DOCKER_BUILDTAGS)"

 	local buildTagCombos=(

 		''

@@ -8,6 +8,15 @@ images=(

 	jess/unshare:latest

 )

+# on ARM we need images that work for the ARM architecture

+if [ -v DOCKER_ENGINE_OSARCH ] && [ "$DOCKER_ENGINE_OSARCH" = "linux/arm" ]; then

+  images=(

+    hypriot/armhf-busybox@ea0800bb83571c585c5652b53668e76b29c7c0eef719892f9d0a48607984f9e1

+    hypriot/armhf-hello-world@508c59a4f8b23c77bbcf43296c3f580873dc7eecb1f0d680cea3067e221fd4c2

+    hypriot/armhf-unshare@3f1db65f8bbabc743fd739cf7145a56c35b2a0979ae3174e9d79b7fa4b00fca1

+  )

+fi

+

 if ! docker inspect "${images[@]}" &> /dev/null; then

 	hardCodedDir='/docker-frozen-images'

 	if [ -d "$hardCodedDir" ]; then

@@ -32,7 +41,19 @@ if ! docker inspect "${images[@]}" &> /dev/null; then

 					inCont = 0;

 				}

 			}

-		' Dockerfile | sh -x

+		' ${DOCKER_FILE:="Dockerfile"} | sh -x

 		( set -x; tar -cC "$dir" . | docker load )

 	fi

 fi

+

+if [ -v DOCKER_ENGINE_OSARCH ] && [ "$DOCKER_ENGINE_OSARCH" = "linux/arm" ]; then

+  # tag images to ensure that all integrations work with the defined image names

+  docker tag hypriot/armhf-busybox:latest busybox:latest

+  docker tag hypriot/armhf-hello-world:latest hello-world:frozen

+  docker tag hypriot/armhf-unshare:latest jess/unshare:latest

+

+  # remove orignal tags as these make problems with later tests: TestInspectApiImageResponse

+  docker rmi hypriot/armhf-busybox:latest

+  docker rmi hypriot/armhf-hello-world:latest

+  docker rmi hypriot/armhf-unshare:latest

+fi

@@ -8,7 +8,7 @@ dir="$DEST/httpserver"

 mkdir -p "$dir"

 (

 	cd "$dir"

-	GOOS=linux GOARCH=amd64 go build -o httpserver github.com/docker/docker/contrib/httpserver

+	GOOS=${DOCKER_ENGINE_GOOS:="linux"} GOARCH=${DOCKER_ENGINE_GOARCH:="amd64"} go build -o httpserver github.com/docker/docker/contrib/httpserver

 	cp ../../../../contrib/httpserver/Dockerfile .

 	docker build -qt httpserver . > /dev/null

 )